Drain/pour in coolant

AR20.00-P-1142MRK

Drain/pour in coolant

14.01.2020

Engine

264 in model 167

Modification notes

13.01.2020

Method description modified.

Operation steps 3 to 6

1

Cap

2

Coolant expansion reservoir

5

Oil cooler

6

Drain valve

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Notes on coolant level

AH20.00-P-1142-01CW

Drain off

1

Slowly unscrew the cap (1) for the coolant expansion reservoir (2) and reduce the overpressure.

2

Remove front and center bottom engine compartment linings.

AR61.20-P-1105ME

3

Remove oil cooler (5) from fan unit and place to one side with connected lines.

4

Attach drain hose to drain valve (6) and drain coolant via drain valve (6) into suitable container.

Pour in

5

Close drain valve (6) and remove drain hose from drain valve (6).

6

Attach oil cooler (5) to fan unit.

7

Pour in coolant and bleed engine cooling system.

AR20.00-P-1142-04OLC

 Cooling system

*BF20.00-P-1001-06D

Test pressure for pressure-testing the engine cooling system

*BE20.30-P-1005-01A

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100

 Pressure pump

*124589242100



Check

8

Check engine cooling system for leak tightness.

AR20.00-P-1011MRK

9

Install lower engine compartment lining.

AR61.20-P-1105ME

Radiator or expansion reservoir cap

Number

Designation

2-stage latch cover

BE20.30-P-1005-01A

Test pressure for pressure-testing the engine cooling system

Overpressure

bar

1,4

 Cooling system

Number

Designation

Engine 264 in model 167

BF20.00-P-1001-06D

Cooling system

Workshop replacement amount

Main circuit

Liter

13,0

Low-temperature circuit

Liter

-

Antifreeze/water

Down to -37 °C

%

50/50

-38 °C and below

%

50/45

Specifications for Operating Fluids, sheet

BB00.40-P-0310-01A

Specifications for Operating Fluids, sheet

BB00.40-P-0325-06A

Specifications for Operating Fluids, sheet

BB00.40-P-0326-06A